Table 2. Characteristics of responders and non-responders at follow-up.
| Descriptor | Responders (n = 1955) | Non-responders (n = 261) | p-value | |
| Age | Mean (SD) | 52.9 (22.5) | 46.8 (21.0) | <0.0001 |
| Sex | n (%) | |||
| Male | 1380 (70.6) | 185 (70.9) | 0.92 | |
| Female | 575 (29.4) | 76 (29.1) | ||
| Comorbid status | n (%) | |||
| Healthy | 1122 (57.6) | 168 (64.6) | 0.03 | |
| Pre-existing condition | 827 (42.4) | 92 (35.4) | ||
| Trauma type | n (%) | |||
| Blunt | 1860 (95.1) | 240 (91.9) | 0.001 | |
| Penetrating | 57 (2.9) | 19 (7.3) | ||
| Burn | 38 (1.9) | 2 (0.8) | ||
| Mechanism | n (%) | |||
| Fall | 777 (39.7) | 86 (33.0) | 0.001 | |
| Motor vehicle | 409 (20.9) | 42 (16.1) | ||
| Pedestrian | 143 (7.3) | 25 (9.6) | ||
| Motorcycle | 213 (10.9) | 24 (9.2) | ||
| Pedal cyclist | 92 (4.7) | 22 (8.4) | ||
| Other | 321 (16.4) | 62 (23.8) | ||
| ISS | Median (IQR) | 19 (16–26) | 17 (14–25) | <0.0001 |
| GCS | n (%) | |||
| 13–15 | 1505 (80.3) | 219 (84.9) | 0.001 | |
| 9–12 | 161 (8.6) | 29 (11.2) | ||
| 3–8 | 209 (11.2) | 10 (3.9) | ||
| ICU stay | n (%) | |||
| Yes | 802 (41.1) | 57 (33.5) | 0.018 | |
| No | 1149 (58.9) | 173 (66.5) | ||
| Hospital length of stay | Median (IQR) days | 8.3 (4.1–16.6) | 7.2 (3.8–13.4) | 0.05 |